Not available online but can be found in stores through Gamestop's stock tracker.
360:
http://www.gamestop.com/xbox-360/games/ninja-gaiden-3-collectors-edition/98955
PS3:
http://www.gamestop.com/ps3/games/ninja-gaiden-3-collectors-edition/98956
NOTE: The image shows the DOA 5 collector's...